I'll make a bit of a comprehensive guide.
I assume your problem was solved with the use of a different usb stick - because the one from sandisk shows up as a fixed drive. You might want to check out this tool: http://www.getusb.info/flip-your-bit-usb-utility-to-make-local-drive/ no guarantees on data safety, you may even kill your usb drive. Still, guide below.
I don't know if all of the steps are required, maybe the media creation tool is a lot better nowadays - but I remember that sometimes it was necessary to do the "phase A" for windows 7 media creation tool even though it should technically format the entire flash drive - so here goes.
For the guide, the USB stick will be
The guide has 3 phases.
A) cleaning of the usbstick (you will lose EVERYTHING on the stick)
B) creating a bootable usb stick using the windows media creation tool
C) booting from the usb using the UEFI shell
1) On your regular PC, plug in the USB disk
2) type "cmd" into start, when it comes up, right-click it and press "run as administrator":
You get into a command prompt.
3) in the command prompt, type
diskpart - it might take some time to open depending on the number of attached disks
4) once in diskpart shell, type
5) in the output, locate your USB drive. Generally, you should look at the size and compare it to the size of your usb. It should also be the highest-number disk since you added it last.
6) select the disk by typing
select disk <number> , where the
<number> is the number from the list above that corresponds with your USB stick
7) completely wipe any partition records by typing
8) create a new partition
create partition primary
9) format the partition as NTFS using quick format
format fs=ntfs quick
10) mark the partition as active
-- optional step 10b below --
10b) if the disk does not have a drive letter (you can check it in file explorer now, it should be showing as an empty NTFS drive), assign one by typing
-- optional step ends --
11) exit diskpart by typing
exit and close the CMD window.
The entire process can be seen on the below screenshot from my VM:
This is probably something you're familiar with, so no screenshots.
1) Get the windows media creation tool for W10:
2) Start it, in the first choice select "Create installation media for another PC"
3) On the next screen, uncheck "user recommended options for this PC" and select your language, select "Windows 10"" and "32bit" architecture.
4) On the next screen, select USB flash drive and on the following screen select the flash drive we just cleaned (it should be something like
E: (no label) )
5) Let the media creation tool do its magic
6) When it finishes, close it and either power off your PC or use the "safe eject" to remove the installation usb stick from your PC.
1) Plug the USB stick into your hub. Assuming you have the same one as I do, set its position to
2) Plug in your keyboard
3) Plug the hub into power
4) Plug the hub into the linx/lamina tablet.
5) Remove the microSD card from your linx/lamina if you have one inserted (!)
6) Start your linx/lamina and mash DEL to get into UEFI
7) Once in uefi, navigate to the last tab called
Save & Exit
8) On this tab, navigate alllllllll the way down to select "Launch EFI Shell from filesystem device"
9) Once the shell launches, locate the fsX: reference to your usb. You are looking for the first reference to "USB" in the device path. For example, the integrated eMMC disk will always be attached to controller 0 and look something like:
PciRoot(0x0)/Pci(0x17,0x0)/Ctrl(0x0)/HD(bunch of stuff)
whereas what you are looking for is something that has USB instead of the Ctrl:
PciRoot(0x0)/Pci(0x17,0x0)/USB(0x1,0x0)/HD(bunch of stuff)
When you see it, you should find the relevant "fs" name. It'll be either listed in the first column, or in the "alias" section, depending upon how far the initial list scrolls.
In my case, it was fs3.
10) Navigate to fs3 by typing
fs3: into the EFI shell (note there is no "cd" in this command!)
11) Navigate to where the EFI bootstrap file is by typing
cd efi\boot into the EFI shell (now there is cd! )
12) bootstrap - press
tab to cycle through files in this directory - since there is just one, you should immediately get the
bootia32.efi filename in the shell.
Screenshot for the previous 3 steps:
ENTER and voila, you should be booting from the USB!
Hope this helps. Please excuse the gorilla-style photography; I don't have a hdmi capture card, ha.
EDIT: Bonus, see my custom boot manager, rEFInd ( http://www.rodsbooks.com/refind/ ) , selecting the option to boot from the media-creation-tool-created USB: